Hollow building-tile.



A: C. 'BLAK E HOLLOW BUILDING TILE.

urucmo'n FILED JUNE 12. 1916.

I a 26 U WITNESSES:

Patented Apr. 16, 1918.

c/ nm 73M0 INVENTOR.

BYM

ATTORNEY To all whom it may concern:

TED srnrrns PATENT OFFIC i ALMON o. BLAKE, or iBELLInGHAM, WASHINGTON, ASSIGNOR T0 FREDVJ. woon, or

ZBELLINGHAM, WASHINGTON.

HOLLOW BUILDING-TILE.

Specification of Letters Patent.

Application filed June 12, 1916. Serial No. 103,058.

Be it known that I, ALMON G. BLAKE, a citizen of the United States, and a resident of Bellingham, in the county of Whatcom and State of WVashington, have invented certain new and useful Improvements in Hollow Building-Tiles, of which the following is a specification. j

My invention relates to improvements in hollow building tile and the object of my invention is to construct the tile so that they can be readily and accurately broken on a predetermined longitudinal plane.

I attain this object in the structures illustrated in the accompanying sheet of drawings in which Figure 1 is anlend elevation of my hollow building tile, Fig.2 is a plan view of Fig. 1, Fig. 3 is an fend elevation of my two-third length tile drawn on a smaller scale, Fig. 4 is a plan view ofFig. 3, Fig. 5 is an end elevation of my one-third length tile drawn on a smaller scale, Fig. 6 is a plan view of Fig. 5, Fig. 7 is an end elevation of one half of the tile shown in Fig. 1, broken on the line a'ag drawn on a smaller scale, Fig. 8 is a plan View of Fig. 7, Fig. 9 is an end elevation of one half of the tile shown in Fig. 3 broken on the line wy, Fig. 10 is a plan view of Fig. 9, Fi 11 is an end elevation of one half of the ti e shown in Fig. 5 broken on-the line w-y, and Fig. 12 is a plan view of Fig. 11.

Similar characters refer to similar parts in the several views.

The internal structure of my tile is clearly shown in Fig. 1, where 2,2 are two vertical webs a short distance apart and equidistant from the center, and 2', 2 are two medial, horizontal webs the contiguous edges of which abutat the kerf 2 In addition to the said kerf 2, I make two longitudinal scores 2 2 on the interior of the'upper and lower walls vertically above and below said kerf. When thus constructed a single hammer blow properly applied will cause the tile 2 to neatly break alongthe plane H and form two, half tiles. Three of said half tiles of varying lengths are illustrated in Figs. 7-12. It should be understood that these half tiles are used in certain parts ofthe wall only. So that in practice the kerf 2 and the scores 2 2 are not made in all of the tiles. To make said kerf a wire is fastened in the die of the tile machine at the proper place. And also, the scores are formed by putting sharp studs or lugs in the proper places in said die. When these appllances are removed the tiles are formed as usual. The kerf 2 is made by a thin wire and is so narrow that pressure on the vertlcal sides of said tile, see Figs. 1 and3, will cause the facing edges of webs 2", 2 to bear Patented Apr. 16, 1918.;

tical webs 2 2 give great resistance against vertical crushing forces, and in a properly laid two tile wall are vertically in line with one of the vertical exterior walls of the tiles above and below. Although I have in practice made tile with the scores 2 2 and kerf 2 as i1lustrated,I find the kerf 2 when used longitudinal, vertical, webs intersecting the upper and lower walls of said tile near and equidistant from their center; and two, in-' terior, longitudinal, horizontal webs in a medial plane, each intersecting a side wall I of said tile and one of said vertical webs and both approaching to close proximity alllong the longitudinal central axis of said t' e.

Signed at Bellinghamin the county of Whatcom and State of Washington this third day ofJune A. D. 1916.

c ALMON C. BLAKE.

Witnesses:

C. W. TAYLOR, R. S. Smrson. 

